A. “Multidimensional comparison of countries’ adaptation to societal aging,” by Cynthia Chen, Dana P. Goldman, Julie Zissimopoulos, John W. Rowe, and Research Network on an Aging Society (Vol. 115, No. 37, September 12, 2018, p. 9169-9174).
www.pnas.org/content/115/37/9169
B. “The impact of exposure to air pollution on cognitive performance,” by Xin Zhang, Xi Chen, and Xiaobo Zhang (Vol. 115, No. 37, September 12, 2018, p. 9193-9197).
